code: def __contains__(self, item: str) -> bool:  # noqa: D
      pass
  
file_path: metricflow/metricflow/model/semantics/semantic_model_container.py
imports: from __future__ import annotations
  from abc import ABC, abstractmethod
  from typing import Generic, List, TypeVar
label_desc: Use image node_id 4 for calling the SemanticModelContainer obj's underlying member method code with example usage: obj.__contains__(item) without return types